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The Vitamin Shoppe NAC, 600 mg supplement bottle
The Vitamin Shoppe

NAC, 600 mg Review

What We Researched
1 active ingredient analyzed · 4 inactive ingredients decoded · 4 brand certifications checked · Page generated: Sep 2026
100
Product Score Excellent
83
Brand Score Good

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
N-Acetyl-L-Cysteine 600 mg *
Bioavailability Excellent

Absorption Rating

  • N-Acetyl-L-Cysteine Good
Other Ingredients Excellent

Fillers & Additives

  • Gelatin
  • Magnesium Stearate
  • Silicon Dioxide
  • Rice Flour
Efficacy Excellent

Dosage Analysis

  • N-Acetyl-L-Cysteine 600 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
N-Acetyl-L-Cysteine 600 mg *

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Rice Flour Safe

Natural bulking agent to fill capsule space. Hypoallergenic.

Brand Trust Report
The Vitamin Shoppe

Founded 1977 · Secaucus, New Jersey, U.S. · 1050 products · vitaminshoppe.com

Certifications

4 certifications
Nsf Certified For Sport Source available Primary evidence
Fda Gmp Inspections Source available Primary evidence
Usda Organic Source available Primary evidence
Non-GMO Project Verified Supporting evidence unavailable

Transparency

4 claims
Third Party Testing Claim — Verified Evidence available Evidence
Coa Availability — Verified Evidence available Evidence
Contains Proprietary Blend — True Brand claim; evidence unavailable

Violation History

6 incidents
Lawsuit Understating the sodium content of its Plnt Organic Protein Bar.2025 Source available Primary source
Prop 65 Lead2024-02-08 Source available Primary source
Lawsuit Failure to pay accurate wages and provide proper breaks.2023 Source available Primary source
Lawsuit False and misleading labeling on BodyTech glutamine supplements.2023 Source available Primary source
Recall Vthrive Bioactive Women's One-Daily Multi vitamins2020-09-24 Source available Primary source
Recall The Vitamin Shoppe Energy Formula multivitamins2020-04-16 Source available Primary source
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Frequently Asked Questions
Is The Vitamin Shoppe NAC, 600 mg a good supplement?

The Vitamin Shoppe NAC, 600 mg received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, The Vitamin Shoppe, holds a brand trust score of 83/100.

What are the ingredients in The Vitamin Shoppe NAC, 600 mg?

The Vitamin Shoppe NAC, 600 mg contains 1 active ingredients: N-Acetyl-L-Cysteine (600 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is The Vitamin Shoppe NAC, 600 mg safe to take?

GoodSupp reviewed the inactive-ingredient data available for The Vitamin Shoppe NAC, 600 mg. All 4 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is The Vitamin Shoppe a trustworthy supplement brand?

The Vitamin Shoppe receives a brand trust score of 83/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1977 and headquartered in Secaucus, New Jersey, U.S., the company offers 1050 products in their lineup. Note: The Vitamin Shoppe has 6 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.